Essays about: "Particle contamination"

Showing result 1 - 5 of 17 essays containing the words Particle contamination.

  1. 1. From Ocean to Table: Microplastic contamination in Nordic salts

    University essay from Lunds universitet/Centrum för miljö- och klimatvetenskap (CEC)

    Author : Anna Nyika; [2023]
    Keywords : Microplastic MP ; MP pollution; plastic pollution; sea salt; rock salt; Nordics; Iceland; Denmark; plastic waste management; human health; marine environment.; Earth and Environmental Sciences;

    Abstract : Large amounts of plastic in the oceans originate from mismanaged plastic waste, and microplastics (MPs) are the most common type of waste. They can be found in household products, such as sea salts. Therefore, monitoring pollution levels is essential to improve marine health and food safety. READ MORE

  3. 2. Plume-Spacecraft Interaction Analysis : Study on the Plume Effects of Hall-Effect Thrusters (HET) and High-Efficiency Multistage Plasma Thrusters (HEMPT).

    University essay from KTH/Skolan för elektroteknik och datavetenskap (EECS)

    Author : Josep Sentís Garzón; [2023]
    Keywords : Electric propulsion; Plasma plume; Plasma physics; SPIS; OpenPlume EP; Modelling; Charge-Exchange Collisions; Elektrisk framdrivning; Plasma plym; Plasmafysik; SPIS; OpenPlume EP; Modellering; Laddningsväxlingskollisioner;

    Abstract : Plume-spacecraft interactions play an important role in the performance and integrity of spacecraft during their missions in space. The study encompasses a thruster’s plume simulation and its impact on spacecraft geometries to understand and predict the effects and consequences of the impingement on spacecraft surfaces, such as erosion, contamination, forces, and torques. READ MORE

  4. 3. Method development for the use of Smoothed-particle hydrodynamics simulations for vehicle soiling analysis

    University essay from Linköpings universitet/Mekanisk värmeteori och strömningslära

    Author : Josep Plana Riu; [2022]
    Keywords : ;

    Abstract : An increasing amount of sensors is being placed in cars in order to monitor their vicinities, which performance is highly dependant on the driving conditions, in which weather has a big role, and thus water contamination is a topic that will increase its importance in the future of the car industry. One of these sources of contamination is self-soiling: how cars get dirty because of their own tires. READ MORE

  5. 4. Six Sigma for quality assurance of Lithium-ion batteries in the cell assembly process : A DMAIC field study at Northvolt

    University essay from Luleå tekniska universitet/Institutionen för ekonomi, teknik, konst och samhälle

    Author : Mani Mostafaee; [2021]
    Keywords : Cell assembly process; ISO 14644; Lithium-ion battery; Particle contamination; Quality Cost; Technical cleanliness; VDA 19;

    Abstract : Lack of technical cleanliness and particle contaminations in Lithium-ion battery manufacturing affect the performance of batteries which are a risk for the safety and quality of the product. Therefore, part of the manufacturing process occurs inside the Clean and Dry room area to maintain technical cleanliness. READ MORE

  6. 5. Predicting the Performance of a Cleaning Nozzle : A Cost-Effective CFD Modeling Approach Compared Against Experimental Data

    University essay from Linköpings universitet/Mekanisk värmeteori och strömningslära

    Author : Gustav Rydholm; Joseph Hainsworth; [2021]
    Keywords : CFD; VOF; LPT; EWF;

    Abstract : With the increasing reliance and use of sensors to improve the capabilities of modern road vehicles, ensuring their functionality during different weather conditions has become an important design consideration. The sensing equipment is utilized for a multitude of tasks, ranging from aiding the user with parking to avoiding potentially dangerous situations. READ MORE